CHEVROLET 84390807 Duramax Speedometer Gauge Cluster 257-10951 6.6

( Brand: Chevrolet ), ( Manufacturer Part Number: 84390807 ), ( Type: Instrument Cluster ), ( Ipn: 257-10951 ), ( Vintage Part: No ), ( Country Of Origin: United States )

Review CHEVROLET Gmc 6.6 Duramax Metric Speedometer Gauge Cluster fits SIERRA 2500 3500 2019

The Chevrolet 84390807 19 GMC 2500 3500 Sierra 6.6 Duramax Speedometer Gauge Cluster is a factory original replacement part designed to fit select 2019 GMC Sierra 2500 and 3500 trucks equipped with the 6.6-liter Duramax diesel engine. This gauge cluster houses essential vehicle information, including the speedometer, tachometer, fuel gauge, water temperature gauge, and transmission temperature gauge.

The speedometer is an essential instrument that displays the vehicle's current speed in miles per hour (mph) or kilometers per hour (km/h), depending on the region's driving regulations. The odometer, which is also part of the speedometer, keeps track of the total distance the vehicle has traveled, while the trip odometer records the distance traveled during a single journey.

The tachometer, located to the left of the speedometer, indicates the engine's RPM (revolutions per minute) level. This information is crucial for optimal engine performance and fuel efficiency, especially when towing heavy loads or operating the vehicle off-road.

The fuel gauge, located below the speedometer, displays the remaining fuel level in the vehicle's tank. It provides accurate and reliable readings to help drivers plan their fuel stops and avoid running out of gas.

The water temperature gauge, located to the left of the fuel gauge, monitors the engine coolant temperature. This information is essential for maintaining the engine's optimal operating temperature, ensuring safe and efficient performance.

The transmission temperature gauge, located to the right of the water temperature gauge, monitors the transmission fluid temperature. Properly monitoring transmission temperature is essential for maintaining the longevity and performance of the transmission system.

This Chevrolet 84390807 19 GMC 2500 3500 Sierra 6.6 Duramax Speedometer Gauge Cluster is a direct-fit replacement part, meaning it is engineered to fit seamlessly into the existing dash opening, ensuring a factory-like appearance and fit. It is also designed to be a plug-and-play installation, making it a convenient and hassle-free replacement option for drivers.

In summary, the Chevrolet 84390807 19 GMC 2500 3500 Sierra 6.6 Duramax Speedometer Gauge Cluster is a factory original replacement part that houses essential vehicle information, including the speedometer, tachometer, fuel gauge, water temperature gauge, and transmission temperature gauge. It is a direct-fit replacement part designed for select 2019 GMC Sierra 2500 and 3500 trucks equipped with the 6.6-liter Duramax diesel engine, ensuring a factory-like appearance, fit, and plug-and-play installation.

Buying a Chevrolet 84390807 19 GMC 2500 3500 Sierra 6.6 Duramax speedometer gauge cluster comes with both advantages and disadvantages. Here's a detailed analysis:

1. Improved Functionality: Replacing the old speedometer gauge cluster with a new one ensures better accuracy and reliability of the speedometer reading.

2. Enhanced Appearance: A new gauge cluster can significantly improve the interior appearance of the vehicle, making it look more modern and appealing.

3. Better Durability: A new gauge cluster is likely to be more durable than the old one, reducing the need for frequent repairs or replacements.

4. Potential for Customization: Some aftermarket gauge clusters offer additional features, such as customizable gauges or LED backlighting, which can enhance the driving experience.

1. Cost: Replacing the gauge cluster can be an expensive repair, especially if you choose to buy an aftermarket one with additional features.

2. Installation Complexity: Installing a new gauge cluster can be a complex process, requiring specialized tools and expertise. It may be best to have it installed by a professional to ensure proper functionality and avoid potential damages to the vehicle.

3. Potential Compatibility Issues: Ensure that the new gauge cluster is compatible with your specific vehicle model and year to avoid any potential compatibility issues that may affect its functionality.

Replacing the speedometer gauge cluster in a Chevrolet 19 GMC 2500 3500 Sierra 6.6 Duramax with a new one offers several advantages, such as improved functionality, enhanced appearance, better durability, and potential customization. However, the high cost, installation complexity, and potential compatibility issues are important considerations. Ultimately, the decision to buy a new gauge cluster depends on your budget, driving preferences, and the importance you place on the vehicle's interior appearance and functionality.

If you prioritize improved functionality and enhanced appearance, and have the necessary budget and expertise for installation, then buying a new speedometer gauge cluster for your Chevrolet 19 GMC 2500 3500 Sierra 6.6 Duramax is a worthwhile investment. Ensure that you purchase a compatible and high-quality gauge cluster from a reputable supplier to avoid any potential issues. If the cost or complexity of installation is a concern, consider exploring alternative solutions, such as repairing the old gauge cluster or using aftermarket gauges that can be installed without replacing the entire cluster.

Details:

Make sure this will work in your truck before purchasing. Item must be in the same condition as it was when received. Fully functioning condition but may need to be programmed your vehicle. Should fit most 17-19 duramax trucks with the L5P engine and same part number only.

You also have the option of picking up item in person and paying cash.

part #: 84390807 prices

• $119.99-$251.65

specifications instrcluster:

• for models: 2500, 3500, Sierra
• for makes: Gmc, Chevrolet
• for years: 2019
• brand: Chevrolet
• mpn: 84390807
• type: Instrument Cluster
• ipn: 257-10951
• vintage part: No
• country of origin: United States

offer instrcluster:

• sold: 0
• availability: In Stock
• quantity: 1
• options: Ship-to-home
• started: December 7, 2025

payments instrcluster:

• other
• wallet: Paypal
• credit card: Mastercard

shipping instrcluster:

• type: Fixed
• service: Economy
• transit: 4-8 Days
• cost: $30.00
• class: Economy

seller instrcluster:

• rating: 96.9%
• # reviews: 4463
• city: Blaine, Washington

general instrcluster:

• Interior Parts Accessories > Gauges > Instrument Clusters
• condition: Used

returns instrcluster:

• policy: No Returns

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